package com.cd.less1;

public class Less_3 {
	public static void main(String[] args) {
		int num1=20;
		num1 ++;
		System.out.println(num1);
		++num1;
		System.out.println(num1);
		num1 --;
		System.out.println(num1);
		--num1;
		System.out.println(num1);
	}
}
